Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Front & Rear Wheel Sensors
Front and rear wheel sensors are installed next to a rotating sensor wheel (trigger wheel). Each time a tooth on sensor wheel passes the sensor, it distorts the magnetic field, resulting in induced AC voltage signals being sent to ECU. ECU processes these signals to determine wheel speed. Front wheel sensors are mounted radially relative to sensor wheel. See Fig 1 . Rear wheel sensors are mounted axially relative to trigger. See Fig 2 .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.